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Tiny color graphic LCD w/controller?

Discussion in 'Electronic Components' started by Lewin A.R.W. Edwards, Sep 4, 2003.

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  1. Hi,

    I need to build a quick and dirty prototype of an appliance that
    requires a small, low-resolution color LCD. I'm looking for an
    off-the-shelf module that includes a controller and video RAM so that
    I can interface it easily to an AVR. Resolution 80x60 would be enough,
    4:3 aspect ratio (or close to it) is mandatory. 2" diagonal or smaller
    is the size range I'm looking for. Four-level grayscale would probably
    be acceptable. The main thing is, I need to be able to buy it in a
    onesie for a one-time project.

    The Hantronix HDM1216C-2 is the closest thing I've found so far, but
    it's a non-stock item at Mouser and I haven't got a reply on the
    leadtime yet. Plus, it's 160x120 and that's more resolution than I
    need.

    Any other candidates people can suggest?
     
  2. Following up to myself:
    Immediately after I posted this, the customer emailed me to say that a
    grayscale first prototype would be acceptable too. So I expand the
    request to include a grayscale 1.8" or smaller graphic module, at
    least 64x64 pixels with 4 gray levels and on-board controller (COG or
    module, I don't care) :)
     
  3. Jim Stewart

    Jim Stewart Guest

    How about the display out of this:
    http://www.hasbro.com/videonow/

    Reverse engineering efforts:
    http://www.wsu.edu/~zocher/
     
  4. Maybe this will work for you (and the price is right!)

    http://sales.goldmine-elec.com/prodinfo.asp?prodid=8258
    regards
     
  5. On 4 Sep 2003 10:00:04 -0700, (Lewin A.R.W. Edwards)
    This doesn't meet your specs, but here it goes anyway,
    could be useful for other embedded projects:

    The Sega Dreamcast VMS/VMU ("Visual Memory
    System/Unit") has a 32x48 pixel LCD + CPU & 128K
    flash memory for around $25.
    (The display is probably 1 bit deep)

    See http://www.maushammer.com/vmu.html ,
    http://www.cs.jhu.edu/~fezzik/virtualboy/vms.html ,
    http://mc.pp.se/dc/ ,
    http://www.deco.franken.de/myfiles/myfiles.html , etc.

    Roberto Waltman
     
  6. Hi Jim,
    The LCD itself is great, but I'd need a controller.
    This is reverse-engineering the PVD disk format, not the hardware
    itself :( But thanks for the response, in any case.
     
  7. Alex Gibson

    Alex Gibson Guest

    Have you looked at the screens in some of the newer phones ?

    couple of projects on avr freaks using nokia 7110 screens(96x64)
    http://www.avrfreaks.com/Freaks/freakshow.php?action=2&projectid=92
    http://www.avrfreaks.com/Freaks/freakshow.php?action=2&projectid=154

    Alex
     
  8. Hi Robert,
    Very nice product, and the price is great - but it doesn't have a
    controller. It needs to be driven in realtime; I need a display module
    where I can just write the data once and have the LCD self-refresh.
    There aren't many modules like this available.
     
  9. Hmmm, you are right. This would be a mess to program in a hurry.

    Regards (and good luck)
    Robert Monsen
     
  10. db

    db Guest

    I just interfaced one these to my gate array board.
    Hardest part was building a pcb to deal with the fine traces
    of the 22 pin connector. The Verilog code to get it working was easy.

    The only problem is I could not get the led lamp to work. Even
    sacraficed my spare taking it apart to try and see how it was wired
    up. I could get the leds to light by applying power directly to them,
    but not at the connector.

    Still it is a cheap way to experiment with an lcd display.
     
  11. Chris Quayle

    Chris Quayle Guest


    Colour Gameboy ?. Apparently Z80 processor and loads of info and
    projects on the web, like digital scopes etc...

    Chris
     
  12. Greg Smith

    Greg Smith Guest

    check out www.cybiko.com

    160x100 4grayscale, keypad, 17mhz uP, serial, usb, etc...

    greg
     
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